ConcurrentDictionary and visibility
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21-04-2021 - |
Вопрос
I have read that ConcurrentDictionary only locks when writing, so the reads are lock free.
http://blogs.msdn.com/b/pfxteam/archive/2010/01/08/9945809.aspx reads on the dictionary are performed in a lock-free manner
But what about visibility, how do they ensure this when the reads are lock free?
Решение
The use of the MemoryBarrier ensures that the objects are 'published' for other threads. This does not require a lock.
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